William howard taft used the state department to

He used the state department to allow American companies and banks to invest in foreign countries.
The investment is an effort made by Taft to continue the economic growth that happened following Ronald Reagan's presidency.
He believed that foreign countries such as South East Asia and South America possess many form of resources that would be beneficial for united states.

United states v.  nixon, 418  u.s.  683 (1974),  was  a landmark  united states supreme court case  that resulted in a unanimous  decision  against president richard  nixon, ordering him to deliver tape recordings  and  other subpoenaed materials to a  federal  district  court.